Cranberry Apple Pie III

Step 1
Preheat oven to 375 degrees F (190 degrees C).

Step 2
In a large saucepan, whisk together white sugar, 1/4 cup flour, and salt. Stir in cranberries and maple syrup. Cook over medium-high heat, stirring constantly. When mixture comes to a boil, reduce heat, cover, and simmer 5 minutes, stirring occasionally.

Step 3
Stir apples into simmering mixture, and continue to cook for 5 minutes, or until apples are tender. Remove from heat, and stir in walnuts. Set aside and allow to cool to room temperature.

Step 4
In a medium bowl, combine breadcrumbs, 3/4 cup flour, brown sugar, and melted butter. Mix well. Pour cooled apple mixture into pie shell and sprinkle crumb topping over apple filling.

Step 5
Bake in preheated oven until topping is golden brown and filling is bubbly, about 30 minutes. Serve warm.